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10 November, 23:26

Researchers determined that 60 Puffs tissues is the average number of tissues used during a cold. Suppose a random sample of 100 Puffs users yielded the following data on the number of tissues used during a cold: X = 52 and s = 22. Suppose the alternative we wanted to test was H:u<60. The correct rejection region for a = 0.05 is: reject H, ift <-1.9842. O reject H, ift 1.6604. "O reject H, if> 1.9842 or Z<-1.9842.

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  1. 11 November, 01:10
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    I have to think this again. be back later x=2.2267 (55).
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